Aquaculture Recycling (RAS) is a rapidly growing technology in the aquaculture industry worldwide. In 2020, Salmon Expert (Spanish) published a comprehensive 136-page compendium on the subject. Norsk FGiskeoppdrett (Norwegian) has in the last couple of years published several issues on the topic, most recently in March 2021. In addition, we have daily news on our web pages (English, Norwegian, Spanish)